Ignoring the fact that Emacs is an editor, not a scripting language, one can do just about anything in LISP (and Emacs LISP), and LISP itself has been around since 1958. I even got paid as a research assistant in college in 1985 to work in LISP on a Xerox 1108 graphical workstation using InterLISP-D (still have the manual). The whole OS was written in LISP and the system had ethernet, mouse and 19" gray-scale monitor. It was fucking awesome.